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3140868 = 223261739
BaseRepresentation
bin1011111110110100000100
312220120110110
423332310010
51301001433
6151153020
735461023
oct13766404
95816413
103140868
111855865
121075770
1385c803
145ba8ba
15420963
hex2fed04

3140868 has 12 divisors (see below), whose sum is σ = 7328720. Its totient is φ = 1046952.

The previous prime is 3140861. The next prime is 3140873. The reversal of 3140868 is 8680413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (3140861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130858 + ... + 130881.

Almost surely, 23140868 is an apocalyptic number.

It is an amenable number.

3140868 is an abundant number, since it is smaller than the sum of its proper divisors (4187852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3140868 is a wasteful number, since it uses less digits than its factorization.

3140868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261746 (or 261744 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 3140868 is about 1772.2494181125. The cubic root of 3140868 is about 146.4479269165.

Subtracting from 3140868 its product of nonzero digits (4608), we obtain a triangular number (3136260 = T2504).

The spelling of 3140868 in words is "three million, one hundred forty thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 261739 523478 785217 1046956 1570434 3140868